I released Rotoworld's initial Dynasty rookie rankings in early May, a week after the NFL draft. With the second wave of rookie drafts kicking off in early August, one of the most popular requests in my Twitter feed is an updated list to reflect stronger opinions from offseason and training camp practice reports.

Why not? That sounds like an excellent idea, and I'm happy to oblige. The following lists are based on standard-scoring (non-PPR) leagues with 25-man rosters. The lists by position include draft round and pick selection.

Big Changes: Bumped Pead from No. 9 to No. 5 after going back and watching clips from his senior season. It's easy to see why he has invoked comparisons to Jamaal Charles, Chris Johnson and LeSean McCoy. I can't blame anyone for preferring first-rounder Wilson, who is an explosive talent in his own right, but Pead jumps off the screen to me.

Moved Wright ahead of Blackmon. I had this duo as the top two receivers immediately following the draft, and I still believe that to be the case. Blackmon may have the talent edge, but he's a long-term suspension risk with a DUI apiece in college and the pros. More problematic is his situation, with GM Gene Smith married to Blaine Gabbert as the franchise quarterback. I'm leaning toward Wright in an offense filled with explosive young talent and a far more promising young quarterback.

Big Changes: Bumped Brian Quick, Lamar Miller and Ronnie Hillman. Quick gets the nod over Floyd because I don't have the patience to wait for the latter to explode onto the fantasy scene while stuck behind target-hog Larry Fitzgerald for the next half-decade. Quick, on the other hand, has an easy path to the No. 1 receiver role under Sam Bradford. I don't see much more than a change-of-pace back when I watch Hillman, but that species is finally beginning to carve out a reliable weekly fantasy niche in today's pass-heavy NFL. I think Miller's game will translate better at the next level, though.

Added Josh Gordon. I never saw Gordon play in college. I've struggled with this ranking because I do believe Jeffery is a fine prospect who was unfairly shredded in the pre-draft cattle call, but the positive reports on Gordon's size, speed, athleticism and vast potential are too much to ignore.

Big Changes: Moved Wilson ahead of Weeden. I've come around to Wilson after originally believing he would be limited to a Seneca Wallace career path in the NFL. He's much better than that and will likely take over the offense at some point in 2012.

Bumped Broyles, who has recovered well from ACL surgery and appears to be a future PPR-league monster. Also bumped offseason standouts Toon and Criner while dropping Jenkins and Givens, who appear to be buried on their respective depth charts. Added Ballard now that he's expected to be in the mix for significant carries as a rookie.

Big Changes: Added Rodriguez, who has some Aaron Hernandez qualities as a "move" tight end. Added Brown and Bolden after their impressive showings in OTAs and early training camp. Dropped Pierce now that Ray Rice is locked up long-term. Bumped Graham, Benjamin and Martin now that they appear poised to contribute as rookies. I still like Michael Smith as a late-draft flier.

Chris Wesseling is a senior football editor and Dynasty league analyst for Rotoworld.com. The 2011 NFL season marks his fifth year with Rotoworld and his third year contributing to NBCSports.com. He can be found on Twitter @ChrisWesseling.Email :Chris Wesseling